browser/components/shell/test/unit/test_421977.js

   1 const Cc = Components.classes;
   2 const Ci = Components.interfaces;
   3 const Cr = Components.results;
   4
   5 const GCONF_BG_COLOR_KEY = "/desktop/gnome/background/primary_color";
   6
   7 var gShell;
   8 var gGConf;
   9
  10 /**
  11  * Converts from a rgb numerical color valule (r << 16 | g << 8 | b)
  12  * into a hex string in #RRGGBB format.
  13  */
  14 function colorToHex(aColor) {
  15   const rMask = 4294901760;
  16   const gMask = 65280;
  17   const bMask = 255;
  18
  19   var r = (aColor & rMask) >> 16;
  20   var g = (aColor & gMask) >> 8;
  21   var b = (aColor & bMask);
  22
  23   return "#" + [r, g, b].map(function(aInt)
  24                               aInt.toString(16).replace(/^(.)$/, "0$1"))
  25                              .join("").toUpperCase();
  26 }
  27
  28 /**
  29  * Converts a color string in #RRGGBB format to a rgb numerical color value
  30  *  (r << 16 | g << 8 | b).
  31  */
  32 function hexToColor(aString) {
  33   return parseInt(aString.substring(1,3), 16) << 16 |
  34          parseInt(aString.substring(3,5), 16) << 8 |
  35          parseInt(aString.substring(5,7), 16);
  36 }
  37
  38 /**
  39  * Checks that setting the GConf background key to aGConfColor will
  40  * result in the Shell component returning a background color equals
  41  * to aExpectedShellColor in #RRGGBB format.
  42  */
  43 function checkGConfToShellColor(aGConfColor, aExpectedShellColor) {
  44
  45   gGConf.setString(GCONF_BG_COLOR_KEY, aGConfColor);
  46   var shellColor = colorToHex(gShell.desktopBackgroundColor);
  47
  48   do_check_eq(shellColor, aExpectedShellColor);
  49 }
  50
  51 /**
  52  * Checks that setting the background color (in #RRGGBB format) using the Shell
  53  * component will result in having a GConf key for the background color set to
  54  * aExpectedGConfColor.
  55  */
  56 function checkShellToGConfColor(aShellColor, aExpectedGConfColor) {
  57
  58   gShell.desktopBackgroundColor = hexToColor(aShellColor);
  59   var gconfColor = gGConf.getString(GCONF_BG_COLOR_KEY);
  60
  61   do_check_eq(gconfColor, aExpectedGConfColor);
  62 }
  63
  64 function run_test() {
  65
  66   // This test is Linux specific for now
  67   if (!("@mozilla.org/gnome-gconf-service;1" in Cc))
  68     return;
  69
  70   gGConf = Cc["@mozilla.org/gnome-gconf-service;1"].
  71            getService(Ci.nsIGConfService);
  72
  73   gShell = Cc["@mozilla.org/browser/shell-service;1"].
  74            getService(Ci.nsIShellService);
  75
  76   // Save the original background color so that we can restore it
  77   // after the test.
  78   var origGConfColor = gGConf.getString(GCONF_BG_COLOR_KEY);
  79
  80   try {
  81
  82     checkGConfToShellColor("#000", "#000000");
  83     checkGConfToShellColor("#00f", "#0000FF");
  84     checkGConfToShellColor("#b2f", "#BB22FF");
  85     checkGConfToShellColor("#fff", "#FFFFFF");
  86
  87     checkGConfToShellColor("#000000", "#000000");
  88     checkGConfToShellColor("#0000ff", "#0000FF");
  89     checkGConfToShellColor("#b002f0", "#B002F0");
  90     checkGConfToShellColor("#ffffff", "#FFFFFF");
  91
  92     checkGConfToShellColor("#000000000", "#000000");
  93     checkGConfToShellColor("#00f00f00f", "#000000");
  94     checkGConfToShellColor("#aaabbbccc", "#AABBCC");
  95     checkGConfToShellColor("#fffffffff", "#FFFFFF");
  96
  97     checkGConfToShellColor("#000000000000", "#000000");
  98     checkGConfToShellColor("#000f000f000f", "#000000");
  99     checkGConfToShellColor("#00ff00ff00ff", "#000000");
 100     checkGConfToShellColor("#aaaabbbbcccc", "#AABBCC");
 101     checkGConfToShellColor("#111122223333", "#112233");
 102     checkGConfToShellColor("#ffffffffffff", "#FFFFFF");
 103
 104     checkShellToGConfColor("#000000", "#000000000000");
 105     checkShellToGConfColor("#0000FF", "#00000000ff00");
 106     checkShellToGConfColor("#FFFFFF", "#ff00ff00ff00");
 107     checkShellToGConfColor("#0A0B0C", "#0a000b000c00");
 108     checkShellToGConfColor("#A0B0C0", "#a000b000c000");
 109     checkShellToGConfColor("#AABBCC", "#aa00bb00cc00");
 110
 111   } finally {
 112     gGConf.setString(GCONF_BG_COLOR_KEY, origGConfColor);
 113   }
 114 }